A fractional order PID-based sliding mode controller approach for chemical processes
This paper proposes a novel control strategy for chemical processes by integrating fractional-order PID (FOPID) controllers with sliding mode control (SMC). Through the use of the enhanced flexibility and superior tuning capabilities of FOPID controllers over traditional PID schemes, the method repl...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-09-01
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| Series: | Results in Control and Optimization |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666720725000785 |
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| author | Oscar Camacho Sebastian Vega Marco Herrera Antonio Di Teodoro Juan J. Gude |
| author_facet | Oscar Camacho Sebastian Vega Marco Herrera Antonio Di Teodoro Juan J. Gude |
| author_sort | Oscar Camacho |
| collection | DOAJ |
| description | This paper proposes a novel control strategy for chemical processes by integrating fractional-order PID (FOPID) controllers with sliding mode control (SMC). Through the use of the enhanced flexibility and superior tuning capabilities of FOPID controllers over traditional PID schemes, the method replaces the classical discontinuous switching mechanism of SMC with a smooth fractional-order control action. The proposed hybrid approach is evaluated through simulations in two nonlinear systems, a mixing tank with variable time delay and a pH neutralization process, and experimentally validated using the TCLab device. Throughout three case studies, the method demonstrates improvements in performance and response between 40% and 10% compared to the other two SMC alternatives. Furthermore, the approach effectively reduces chattering, improves convergence speed, and improves robustness to measurement noise, contributing to extended actuator lifespan. This makes the proposed methodology particularly attractive for chemical process applications, offering a practical and accessible solution for plant operators by enabling the utilization of robust control techniques without requiring deep expertise in nonlinear control design. |
| format | Article |
| id | doaj-art-0c83ecb543f74473a319fa7732ee6487 |
| institution | Kabale University |
| issn | 2666-7207 |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Control and Optimization |
| spelling | doaj-art-0c83ecb543f74473a319fa7732ee64872025-08-20T03:30:30ZengElsevierResults in Control and Optimization2666-72072025-09-012010059210.1016/j.rico.2025.100592A fractional order PID-based sliding mode controller approach for chemical processesOscar Camacho0Sebastian Vega1Marco Herrera2Antonio Di Teodoro3Juan J. Gude4Colegio de Ciencias e Ingenierias, Universidad San Francisco de Quito, Quito, Ecuador; Corresponding author.Colegio de Ciencias e Ingenierias, Universidad San Francisco de Quito, Quito, EcuadorColegio de Ciencias e Ingenierias, Universidad San Francisco de Quito, Quito, EcuadorColegio de Ciencias e Ingenierias, Universidad San Francisco de Quito, Quito, EcuadorDepartment of Computing, Electronics and Communication Technologies, Faculty of Engineering, University of Deusto, 48007, SpainThis paper proposes a novel control strategy for chemical processes by integrating fractional-order PID (FOPID) controllers with sliding mode control (SMC). Through the use of the enhanced flexibility and superior tuning capabilities of FOPID controllers over traditional PID schemes, the method replaces the classical discontinuous switching mechanism of SMC with a smooth fractional-order control action. The proposed hybrid approach is evaluated through simulations in two nonlinear systems, a mixing tank with variable time delay and a pH neutralization process, and experimentally validated using the TCLab device. Throughout three case studies, the method demonstrates improvements in performance and response between 40% and 10% compared to the other two SMC alternatives. Furthermore, the approach effectively reduces chattering, improves convergence speed, and improves robustness to measurement noise, contributing to extended actuator lifespan. This makes the proposed methodology particularly attractive for chemical process applications, offering a practical and accessible solution for plant operators by enabling the utilization of robust control techniques without requiring deep expertise in nonlinear control design.http://www.sciencedirect.com/science/article/pii/S2666720725000785Fractional-order PID controlSliding mode controlHybrid control strategiesNonlinear systemsChemical processes |
| spellingShingle | Oscar Camacho Sebastian Vega Marco Herrera Antonio Di Teodoro Juan J. Gude A fractional order PID-based sliding mode controller approach for chemical processes Results in Control and Optimization Fractional-order PID control Sliding mode control Hybrid control strategies Nonlinear systems Chemical processes |
| title | A fractional order PID-based sliding mode controller approach for chemical processes |
| title_full | A fractional order PID-based sliding mode controller approach for chemical processes |
| title_fullStr | A fractional order PID-based sliding mode controller approach for chemical processes |
| title_full_unstemmed | A fractional order PID-based sliding mode controller approach for chemical processes |
| title_short | A fractional order PID-based sliding mode controller approach for chemical processes |
| title_sort | fractional order pid based sliding mode controller approach for chemical processes |
| topic | Fractional-order PID control Sliding mode control Hybrid control strategies Nonlinear systems Chemical processes |
| url | http://www.sciencedirect.com/science/article/pii/S2666720725000785 |
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